1 /*
2 * Copyright (c) 2013, Google Inc. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions are
6 * met:
7 *
8 * * Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * * Redistributions in binary form must reproduce the above
11 * copyright notice, this list of conditions and the following disclaimer
12 * in the documentation and/or other materials provided with the
13 * distribution.
14 * * Neither the name of Google Inc. nor the names of its
15 * contributors may be used to endorse or promote products derived from
16 * this software without specific prior written permission.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
21 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
22 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
23 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29 */
30
31 #include "config.h"
32 #include "platform/graphics/gpu/AcceleratedImageBufferSurface.h"
33
34 #include "platform/graphics/gpu/SharedGraphicsContext3D.h"
35 #include "third_party/skia/include/gpu/SkGpuDevice.h"
36
37 namespace WebCore {
38
AcceleratedImageBufferSurface(const IntSize & size,OpacityMode opacityMode,int msaaSampleCount)39 AcceleratedImageBufferSurface::AcceleratedImageBufferSurface(const IntSize& size, OpacityMode opacityMode, int msaaSampleCount)
40 : ImageBufferSurface(size, opacityMode)
41 {
42 GrContext* grContext = SharedGraphicsContext3D::get()->grContext();
43 if (!grContext)
44 return;
45 RefPtr<SkGpuDevice> device = adoptRef(new SkGpuDevice(grContext, SkBitmap::kARGB_8888_Config, size.width(), size.height(), msaaSampleCount));
46 if (!device->accessRenderTarget())
47 return;
48 m_canvas = adoptPtr(new SkCanvas(device.get()));
49 clear();
50 }
51
getBackingTexture() const52 Platform3DObject AcceleratedImageBufferSurface::getBackingTexture() const
53 {
54 GrRenderTarget* renderTarget = m_canvas->getTopDevice()->accessRenderTarget();
55 if (renderTarget) {
56 return renderTarget->asTexture()->getTextureHandle();
57 }
58 return 0;
59 }
60
61 } // namespace WebCore
62